168995440

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{769}}^1$

素因数の和:890

約数の個数: 80

約数和(自身を含む): 409036320

約数和(自身を除く): 240040880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 67, 80, 82, 134, 164, 205, 268, 328, 335, 410, 536, 656, 670, 769, 820, 1072, 1340, 1538, 1640, 2680, 2747, 3076, 3280, 3845, 5360, 5494, 6152, 7690, 10988, 12304, 13735, 15380, 21976, 27470, 30760, 31529, 43952, 51523, 54940, 61520, 63058, 103046, 109880, 126116, 157645, 206092, 219760, 252232, 257615, 315290, 412184, 504464, 515230, 630580, 824368, 1030460, 1261160, 2060920, 2112443, 2522320, 4121840, 4224886, 8449772, 10562215, 16899544, 21124430, 33799088, 42248860, 84497720, 168995440]

約数ペア:

[(1, 168995440), (2, 84497720), (4, 42248860), (5, 33799088), (8, 21124430), (10, 16899544), (16, 10562215), (20, 8449772), (40, 4224886), (41, 4121840), (67, 2522320), (80, 2112443), (82, 2060920), (134, 1261160), (164, 1030460), (205, 824368), (268, 630580), (328, 515230), (335, 504464), (410, 412184), (536, 315290), (656, 257615), (670, 252232), (769, 219760), (820, 206092), (1072, 157645), (1340, 126116), (1538, 109880), (1640, 103046), (2680, 63058), (2747, 61520), (3076, 54940), (3280, 51523), (3845, 43952), (5360, 31529), (5494, 30760), (6152, 27470), (7690, 21976), (10988, 15380), (12304, 13735)]